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Technical Specifications


15 1/2 T35

Diameter: 393.7mm (15 1/2")  
IADC Code: 543CX  
Design number: UT219  
State standard designation: СЗ-ЦВ  


Gradient angle of axle journal 33°
Axle journal offset relative to drill bit axis 5.00 mm
Bearing type Roller bearing
Sealing None
Total number of inserts (inner/heel row) 166 (110/56)
Total number of insert rows (inner/heel row) 13 (10/3)
Number of changeable nozzles 1
Connecting thread З-171 (6 5/8 FH)
Drill bit net weight, kg 184.00
Drill bit gross weight, kg 188.40

Recommended Drilling Conditions

Rotation speed 240-80 rpm
Thrust load 17.00-29.00 t (37400 - 63800 lbs)
The lower level of rotation speed value corresponds the upper level of thrust load value and vice versa.



Design Features


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